I.S. EN ISO 12759-4:2019
Current
The latest, up-to-date edition.
Fans - Efficiency classification for fans - Part 4: Driven fans at maximum operating speed (ISO 12759-4:2019)
Hardcopy , PDF
English
16-12-2019
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 General information
6 Ratings
Annex A (normative) Examples of applying efficiency lines to driven fans
Annex B (informative) Compensation factors
Annex C (informative) The variation of fan performance between installation categories
Annex D (informative) Selection of fans for best efficiency
Annex E (informative) Explanatory note
Bibliography
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